Police say a Dallas-area woman was mauled to death by her two pit bull terriers as she tried to feed them at a veterinary clinic, where the dogs were in quarantine for a prior attack.Irving police say 33-year-old Johana Villafane of Irving was pronounced dead Saturday at a Dallas hospital.A police statement says Villafane was at the clinic Saturday morning to feed the dogs and was in an exercise area when they attacked her."Both staff and paramedics attempted to intervene and rescue the owner but the dogs continued to exhibit aggressive behavior," the statement read. A police officer shot and killed both animals.“I don’t believe that had a choice,” Officer David Dickinson told WFAA. “His job is to intervene to safeguard human life, and that’s what he attempted to do.” Villafane was taken to a hospital, where she died. "The dogs were involved in an incident earlier in the month in which they bit someone," Dickinson told Fox 4. "They were here at the animal hospital being quarantined per regulations. She was attending to the dogs, coming up to the dogs, and it's my understanding that she was walking the dogs when the event occurred."Neighbor Grant Dickey told KTVT police thought the dogs were his during that previous biting incident because they saw them near his property. “…they saw the pit bulls going in and out of the hole that they made in my back fence and asked me if they were my dogs,” Grant Dickey said. “I said, ‘No, it’s the neighbor’s dogs… they broke through into my yard earlier’ and they said, ‘Well they bit somebody when they got out.”Dickey said they seemed friendly but rough.“They had always seemed friendly, but aggressively friendly if you will. Jumping on you… and they were pretty sizable dogs,” he said.Villafane’s neighbor Rick Warner said he doesn't think the breed should be blamed. “It’s just unbelievable,” Warner said. “It doesn’t matter the breed when that happens, if an animal gets that kind of reactive, they call it the ‘red zone’ and nothing is going to take it off except for extreme force.” A fundraiser page for Villafane describes her as "a very happy, loving, fun, caring, helpful person, she was an amazing mom that was completely in love with her two children."Irving police are still investigating the owner’s death and what may have caused the dogs to attack her.

DALLAS —

Police say a Dallas-area woman was mauled to death by her two pit bull terriers as she tried to feed them at a veterinary clinic, where the dogs were in quarantine for a prior attack.

A police statement says Villafane was at the clinic Saturday morning to feed the dogs and was in an exercise area when they attacked her.

"Both staff and paramedics attempted to intervene and rescue the owner but the dogs continued to exhibit aggressive behavior," the statement read.

A police officer shot and killed both animals.

“I don’t believe that [the officer who shot the dogs] had a choice,” Officer David Dickinson told WFAA. “His job is to intervene to safeguard human life, and that’s what he attempted to do.”

Villafane was taken to a hospital, where she died.

"The dogs were involved in an incident earlier in the month in which they bit someone," Dickinson told Fox 4. "They were here at the animal hospital being quarantined per regulations. She was attending to the dogs, coming up to the dogs, and it's my understanding that she was walking the dogs when the event occurred."

Neighbor Grant Dickey told KTVT police thought the dogs were his during that previous biting incident because they saw them near his property.

“…they saw the pit bulls going in and out of the hole that they made in my back fence and asked me if they were my dogs,” Grant Dickey said. “I said, ‘No, it’s the neighbor’s dogs… they broke through into my yard earlier’ and they said, ‘Well they bit somebody when they got out.”

Dickey said they seemed friendly but rough.

“They had always seemed friendly, but aggressively friendly if you will. Jumping on you… and they were pretty sizable dogs,” he said.

Villafane’s neighbor Rick Warner said he doesn't think the breed should be blamed.

“It’s just unbelievable,” Warner said. “It doesn’t matter the breed when that happens, if an animal gets that kind of reactive, they call it the ‘red zone’ and nothing is going to take it off except for extreme force.”

A fundraiser page for Villafane describes her as "a very happy, loving, fun, caring, helpful person, she was an amazing mom that was completely in love with her two children."

Irving police are still investigating the owner’s death and what may have caused the dogs to attack her.